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Date: Thu, 14 Feb 2019 10:19:23 -0700
From: Khalid Aziz <>
To: Borislav Petkov <>,
Cc: Peter Zijlstra <>,,,,,,,,,,,,,
        Juerg Haefliger <>,,,,,,,,,,,,,,,,,,,,,,,,,
        Marco Benatto <>
Subject: Re: [RFC PATCH v8 03/14] mm, x86: Add support for eXclusive Page
 Frame Ownership (XPFO)

On 2/14/19 9:15 AM, Borislav Petkov wrote:
> On Thu, Feb 14, 2019 at 11:56:31AM +0100, Peter Zijlstra wrote:
>>> +EXPORT_SYMBOL(xpfo_kunmap);
>> And these here things are most definitely not IRQ-safe.
> Should also be EXPORT_SYMBOL_GPL.

Agreed. On the other hand, is there even a need to export this? It
should only be called from kunmap() or kunmap_atomic() and not from any
module directly. Same for xpfo_kmap.


Download attachment "pEpkey.asc" of type "application/pgp-keys" (2461 bytes)

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